I am currently working on the code for the final features that will be included in the V2.0 release, as well as the associated V2.0 user guide. I have posted a partial version of the new user guide as a pinned topic on the forum at http://astroimagej.1065399.n5.nabble.com/Partial-Draft-of-User-Guide-for-AstroImageJ-V2-0beta-td12.html. The current version provides a general overview of how to use AstroImageJ version 2.0, and provides details on the image display interface, the data processor module, and the FITS Header Viewing/Editing Module. Let me know if you have trouble downloading the document. I hope to complete the final version of both the software and documentation by year end.